:root {
  --primary-blue: #1a365d;
  --industrial-red: #c53030;
  --light-gray: #f7fafc;
  --text-dark: #2d3748;
}

body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--light-gray);
}

.industrial-header {
  background: var(--primary-blue);
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  width: 180px;
  height: auto;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--industrial-red);
}

.main-content {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.hero-section {
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), 
              url('/src/assets/factory-bg.jpg');
  background-size: cover;
  color: white;
  padding: 4rem 2rem;
  text-align: center;
  border-radius: 8px;
  margin-bottom: 3rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.product-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.product-card:hover {
  transform: translateY(-5px);
}

.certification-section {
  background: white;
  padding: 2rem;
  margin-top: 3rem;
  border-radius: 8px;
}

.industrial-footer {
  background: var(--primary-blue);
  color: white;
  padding: 2rem 0;
  margin-top: 4rem;
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .nav-menu {
    flex-direction: column;
    gap: 1rem;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
}
